return Collections.EMPTY_SET;
}
protected void createMessageAudit() {
if (enableAudit && audit == null) {
audit = new ActiveMQMessageAudit(maxAuditDepth,maxProducersToAudit);
TransactionContext c = null;
try {
c = getTransactionContext();
getAdapter().doMessageIdScan(c, auditRecoveryDepth, new JDBCMessageIdScanListener() {